Hi,

Using SDK 4.4.0 for the Client and the Server on the same computer I recently had errors like this when connecting (impossible to connect without restarting):
com.prosysopc.ua.stack.common.ServiceResultException: Bad_UnexpectedError (code=0x80010000, description=”Bad_UnexpectedError (code=0x80010000, description=”com.prosysopc.ua.stack.common.ServiceResultException: Bad_SecurityChecksFailed (code=0x80130000, description=”Signature could not be VERIFIED”)”)”)
at com.prosysopc.ua.stack.transport.tcp.io.TcpConnection$b.run(SourceFile:540)

It’s strange because it happened one day and was reproductible several times even when deleting the PKI folder but today it’s not reproductible… I would like to know what should I do if it happens again to have immediatly the right logs for instance.

My ideas at the moment are:
– as it is related to signature, at the moment I was creating 2 certificates (2048 et 4096 size) but I will now only create the 2048,
– update to the 4.4.2 SDK,
– active TRACE level for the class ChunkAsymmDecryptVerifier

Do you know what could cause this issue or other things that I could already do?

Thanks